[bevan]

There’s a short and fun book called Blitzed about “PED” use in WWII. Covering German pharmaceutical industry’s monopoly over certain stimulants, Hitler’s unlikely doctor who shot him up with everything under the sun, and the ultimate consequences for everyone involved (addiction, exhaustion, insanity).

[BossingAround]

Meth specifically is believed to be one of the contributing factor in the early success of the German army. Interestingly, I believe the same was used by the Japanese to encourage suicidal attacks, since, it turns out, it's easier to carry one when you're high as a kite.